Posted by John McHale WASHINGTON, 5 April 2011. Officials at NASA announced that the final launch for space shuttle Endeavour -- mission STS-134 -- is now scheduled for 3:47 pm Est on Friday, April 29. NASA officials made the change after meeting with their international partners on the International Space Station. The delay removes a scheduling conflict with a Russian Progress supply vehicle scheduled to launch April 27 and arrive at the station April 29. NASA managers will hold a Flight Readiness Review on Tuesday, April 19, to assess the team's readiness to support launch. An official launch date will be selected at the conclusion of the meeting. The Progress 42 spacecraft will be delivering supplies to the station. Three more members of the Expedition 27 crew are scheduled to launch at 6:18 pm Est. on Monday, April 4, from the Baikonur Cosmodrome in Kazakhstan. Their arrival will return the station crew's size to six members. Russian cosmonauts Andrey Borisenko and Alexander Samokutyaev and NASA astronaut Ron Garan are scheduled to arrive at the station at 7:18 p.m., Wednesday, April 6, to join cosmonaut Expedition 27 Commander Dmitry Kondratyev, European Space Agency astronaut Paolo Nespoli, and NASA astronaut Cady Coleman, who have been aboard the station since mid-December. For more information about Endeavour's mission, visit: http://www.nasa.gov/shuttle.